ALPHA PRO TECH LTD

CUSIP: 20772109 Class: COM

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

Note: Option positions (PUT/CALL) are excluded.

Q3 2016
Shares 700 Value ($000) $3 Avg Close — Range —
Q2 2015
Shares 12,724 Value ($000) $29 Avg Close — Range —
Q1 2015
Shares 16,324 Value ($000) $37 Avg Close — Range —
Q4 2014
Shares 18,684 Value ($000) $48 Avg Close — Range —